Value Collection 581895BR Hex Socket Cap Screw 1-1/4-7 Unc

Product Description

The VALUE COLLECTION 581895BR is a hex socket cap screw engineered for high-strength fastening applications in industrial, mechanical, and structural assemblies. Manufactured from alloy steel with a black oxide finish, this fastener offers solid corrosion resistance and a clean appearance suited for precision fits. The screw features a 1-1/4-7 UNC thread profile and measures 3.75 inches under the head. Drive engagement is achieved through a 0.875-inch hex socket interface, requiring a standard hex key or bit driver of the matching size. This screw is appropriate for use by millwrights, machinists, maintenance technicians, and mechanical contractors working on heavy-duty bolted assemblies.

This fastener is well suited for use in industrial machinery, structural steel connections, hydraulic system components, and heavy equipment assembly where a flush or recessed fastener head is required. The fully threaded shank and coarse UNC thread pitch provide reliable clamping force across the full grip range. It meets ASME/ANSI B18.3 and ASTM A574 dimensional and mechanical property standards, making it appropriate for specification-driven applications.

Key Features

• Alloy steel construction provides high tensile strength for demanding fastening applications
• Black oxide finish offers mild corrosion resistance and reduces surface glare
• Fully threaded shank maximizes thread engagement throughout the grip length
• 1-1/4-7 UNC coarse thread for reliable load distribution and ease of assembly
• 0.875-inch hex drive socket interface for high-torque installation
• Meets ASME/ANSI B18.3 and ASTM A574 standards for dimensional accuracy and mechanical performance

Compatibility

Designed as a standard hex socket cap screw for any application requiring a 1-1/4-7 UNC coarse thread fastener conforming to ASME/ANSI B18.3 and ASTM A574 specifications.

Installation Notes

Installation should be performed by qualified mechanical or maintenance personnel using a properly sized 0.875-inch hex key or socket bit. Ensure mating threads are clean and free of debris before installation. Apply thread lubricant or anti-seize compound as required by the application to achieve accurate clamping load. Always follow applicable engineering specifications or torque tables for the fastener grade when determining final seating torque.